What is the best seo software to promote my website on Google?

[Kevin]

Ok.. so a lot of people here are listing these tools..
1-SENUKE
2-Traffic Kahuna
3-Bookmarking Demon
4-Xgenseo
5-Scrapebox
6-Xrummer

but let me give you the reality..

Really the only software tool you need is SEnuke X. There is a really good review put together at http://kickassreport.com/senuke-x-review It goes in to more the nuts and bolts of SEnuke X.

I would stay away from Xgenseo.. its hard to setup and manage. Better to pay someone to use that tool for you.. you can find a company out there at already knows how to use it.

Scrapebox is a great tool and I own it.. but you don't need it until you have about 10k links to your site.. It can look a little spamy to Google if you use it for a site that is to new and not enough links. \

Bookmarking Demon - You don't need this if you get SEnuke X.

Yes, SEnuke X is a monthly paid tool but its because they are always updating it and making sure it works if a site changes there setup. To pay 100 bucks per month for a tool that replaces 8 people working an 8 hour day!